42 THE JEWS IN THE MODERN WORLD CHAP, m
as they continue to receive a constant influx of population
from villages and small towns, whereas the Jews have no
such reserves.
The tendency in cities towards assimilation and the turn-
ing away from Judaism is the more marked, the smaller the
percentage which the Jews form of the population, and the
less they congregate in special quarters. It is not an accident
that among the large cities Hamburg has (after Glasgow)
the smallest percentage of Jews, no ghetto, and the greatest
percentage of mixed marriages. Numbers and concentra-
tion tend to isolate the Jews from the non-Jews, even if
they inhabit the same city; the reverse conditions increase
the intermixture of Jews and non-Jews, and promote
assimilation.